Operation CHARM: Car repair manuals for everyone.

Scan Tool Data Definitions Part 2

Part 2

Shift Solenoid 1: Display shows shift solenoid 1 as On or Off. When the automatic transaxle is in first or fourth gear, the scan tool should display On. When the transaxle is in second or third gear, the scan tool should display Off.

Shift Solenoid 2: Display shows shift solenoid 2 as On or Off. When the automatic transaxle is in first or second gear, the scan tool should display On. When the transaxle is in third or fourth gear, the scan tool should display Off.

Commanded Gear: Display shows Commanded Gear as 1, 2, 3 or 4. This display is the decoded value converted to 1, 2, 3 or 4 from the state of the solenoids, PCM commanded.

Trans. Range: Display shows Drive 1, Drive 2, Drive 3, Drive 4, Reverse, P/N, or Invalid. This is the decoded manual valve position from the transaxle range pressure switch.

Trans Range A/B/C: Display shows On or Off. This shows the state of the three outputs from the transaxle range pressure switch which is used to indicate the actual manual valve position.

Shift Mode Sw: Display shows Normal or Perf. This display shows the position of the transmission shift performance switch.

TCC: Display shows TCC as Disengaged or Engaged. This display is the commanded state of the viscous Torque Converter Clutch.

TCC Duty Cycle: Display shows viscous TCC Duty Cycle in percent from 0 to 100. This parameter is the commanded percent of ON time of the TCC solenoid. 100% represents an On, energized, commanded state. 0% represents a Off, nonenergized, commanded state.

Malfunction Ind. Lamp Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (0DM) A output #1 for an open or shorted condition if one of the conditions exists the fault line will go low. The scan tool will display the condition that is present.

Vehicle Speed Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (0DM) A output # 2 for an open or shorted condition if one of the conditions exists the fault line will go low. The scan tool will display the condition that is present.

Delivered Torque Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (0DM) A output # 4 for an open or shorted condition if one of the conditions exists the fault line will go low. The scan tool will display the condition that is present.

EVAP Purge Sol. Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (0DM) A output # 5 for an open or shorted condition if one of the conditions exists the fault line will go low. The scan tool will display the condition that is present.

Air Conditioning Relay Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (0DM) B # 3 for an open or shorted condition if one of the conditions exists the fault line will go low. The scan tool will display the condition that is present.



Cruise Requested: Display shows No or Yes. The display represents the state of the cruise request input from the cruise control switch.

Cruise: Display shows cruise state as Disabled or Enabled. If the PCM detects conditions that the vehicle is operating under that cruise should not be allowed, I.E. low vehicle speed, it will send out a signal to disable cruise. If cruise will be allowed it will send out a signal to enable cruise.

Cruise Enable Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (0DM) B # 4 for an open or shorted condition if one of the conditions exists the fault line will go Low. The scan tool will display the condition that is present.

Shift Solenoid 1 Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (0DM) # 2 output # 5 for an open or shorted condition it one of the conditions exists the fault line will go low. The scan tool will display the condition that is present.

Shift Solenoid 2 Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (0DM) # 2 output # 6 for an open or shorted condition if one of the conditions exists the fault line will go low. The scan tool will display the condition that is present.

TCC Solenoid Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (0DM) # 2 output # 7 for an open or shorted condition if one of the conditions exists the fault line will go low. The scan tool will display the condition that is present.


Driver 1 Ground: Display shows OK, Over Voltage, Over Current. This displays the state of 0DM #1's input circuit.

Driver 2 Ground: Display shows OK, Over Voltage, Over Current. This displays the state of 0DM #2's input circuit.

Quad Driver 1: Display shows OK or Fault. This displays the state of 0DM #1 output circuits with fault being open or grounded.

Passkey Fuel: Display shows Enabled or Inhibited. This display is a input from the Pass-Key II module that tells the PCM to enable the injectors if the proper signal is received. The scan tool will normally display Enabled. If the Pass-key test has failed, the display will switch to Inhibited and the fuel system may be disabled.

Passkey Input: Display shows Enabled or Disabled and 0.0 to 984.6 ms. Scan tool will display Enabled after the Passkey II module has read the ignition key code and is allowing vehicle operation. Disabled will be shown if a system fault is detected.

Injector 1 thru 8: Fault Display shows OK or Fault. Scan tool will display fault if the PCM has detected an improper voltage level in any of the fuel injectors circuits to determine if any of the eight injectors are misfiring.

Odometer: Display shows miles from 0 to 1677722. This display is the actual vehicle miles stored in the PCM.


CL Fuel Control Sw. Point 02S: Display shows millivolts from 0 to 1107. This is the oxygen sensor voltage at which closed loop is achieved.




HO2S Warm Up Time Bn 1 Sen. 1: Display shows
minutes and seconds from 0:00 to 4:15. This
parameter is how much time it takes for the oxygen
sensor to start its voltage swings over the rich/lean
threshold.

HO2S Warm Up Time Bn 2 Sen. 1: Display shows
minutes and seconds from 0:00 to 4:15. This
parameter is how much time it takes for the oxygen
sensor to start its voltage swings over the rich/lean
threshold.

02S X Counts Bn 1: Display shows counts from 0 to
255. This display is the number of times the oxygen
sensor voltage crosses over the rich/lean threshold
during a one second interval.

025 X Counts Bn 2: Display shows counts from 0
to 255. This display is the number of times the
oxygen sensor voltage crosses over the rich/lean
threshold during a one second interval.

HO2S Lean/Rich Transition Time Bn 1 Sen. 1:
Display shows time in milliseconds from 0.0 to
3187.5 ms. Display is the time for the HO2S voltage
to change from the lean threshold to the rich
threshold.

HO2S Rich/Lean Transition Time Bn 1 Sen. 1:
Display shows time in milliseconds from 0.0 to
3187.5 ms. Display is the time for the HO2S voltage
to change from the rich threshold to the lean
threshold.

HO2S Lean/Rich Transition Time Bn 2 Sen. 1:
Display shows time in milliseconds from 0.0 to
3187.5 ms. Display is the time for the HO2S voltage
to change from the lean threshold to the rich
threshold.

HO2S Rich/Lean Transition Time Bn 2 Sen. 1:
Display shows time in milliseconds from 0.0 to
3187.5 ms. Display is the time for the HO2S voltage
to change from the rich threshold to the lean
threshold.

HO2S Lean/Rich Transition Time Bn 1 Sen. 2:
Display shows time in milliseconds from 0.0 to
3187.5 ms. Display is the time for the HO2S voltage
to change from the lean threshold to the rich
threshold.

HO2S Rich/Lean Transition Time Bn 1 Sen. 2:
Display shows time in milliseconds from 0.0 to
3187.5 ms. Display is the time for the HO2S voltage
to change from the rich threshold to the lean
threshold.

Calc. TWC Temp: Display shows temperature in
degrees C and degrees F from 0°C (32°F) to
765°C (1409°F). This parameter is the PCM
calculated temperature of the Three Way Catalyst.

Lean/Rich Switch Bn 1 Sen. 1: Display shows
counts from 0 to 65535. This displays the number of
counts when the HO2S voltage swings above the
rich mean threshold.

Rich/Lean Switch Bn 1 Sen. 1: Display shows counts from 0 to 65535. This displays the number of counts when the HO2S voltage swings below the lean mean threshold.

Lean/Rich Switch Bn 2 Sen. 1: Display shows counts from 0 to 65535. This displays the number of counts when the HO2S voltage swings above the rich mean threshold.

Rich/Lean Switch Bn 2 Sen. 1: Display shows counts from 0 to 65535. This displays the number of counts when the HO2S voltage swings below the lean mean threshold.

Lean/Rich Switch Bn 1 Sen. 2: Display shows counts from 0 to 65535. This displays the number of counts when the HO2S voltage swings above the rich mean threshold.

Rich/Lean Switch Bn 1 Sen. 2: Display shows counts from 0 to 65535. This displays the number of counts when the HO2S voltage swings below the lean mean threshold.

Misfire Hist. # 1 (thru) #8: Display shows counts from 0 to 65535. The Misfire History counters display the total level of misfire that has been detected on each cylinder. The Misfire History counters will not update or show any activity until a misfire, DTC P0300, has become active. The Misfire History counters will update every 200 cylinder firing events.

Misfire Passes: Display shows counts from 0 to 65535. The Misfire Passes counter shows the relative number of passed misfire tests since P0300 went active.

Misfire Failures: Display shows counts from 0 to 65535. The Misfire Failure counter shows the relative number of failed misfire tests since P0300 went active.

Cycles of Misfire Data: Display shows counts from 0 to 100. Displays which engine cycle of the 100 engine cycle test the PCM is collecting data for P0300.

Misfire Cycle Delay Counter: Display shows counts from 0 to 255. If the misfire test is interrupted. due to the vehicle coming outside the test conditions for P0300. this display will show the number of engine cycles left before the test is reenabled and data collection will resume.

Revs. w/Misfire: Display shows counts from 0 to 200. The counts displayed are the number of misfires counts detected in the last misfire test. A misfire count is two times the number of misfires

Msf. Rev. Status: Display shows Accepted or Rejected. Accepted means the misfires are valid misfires. Rejected means the misfires were not actual misfires but an indication rough road.

Total Misfire: Display shows counts from 0 to 255. This display indicates the total number of cylinder firing events that were detected as being misfires during the last 200 crankshaft revolution sample period.

Misfiring Cyl: Display shows Primary Cyl. 1-8 and Secondary Cyl. 1-8. If a misfire is present this display will show the primary missing cylinder and if more than one, the secondary missing cylinder. If no misfire is present the display will not show a number. Misfire Cur. # 1(thru) #8: Display shows Misfire Current counters increment at a rate according to the number of possible misfires being detected on each cylinder during the last 200 cylinder firing events. The counters may normally display some activity, but the activity should be nearly equal for all the cylinders.

RPM at Misfire: Display shows RPM at which DTC P0300 was set. When a misfire is detected, the PCM will store the RPM at which the misfire occurred.

Load at Misfire: Display shows load in percent at which DTC P0300 was set. When a misfire is detected, the PCM will store the percent of load at which the misfire occurred.

ECT at Misfire: Display shows ECT in degrees at which DTC P0300 was set. When a misfire is detected, the PCM will store the ECT in degrees at which the misfire occurred.